EP2903301A3 - Improving at least one of intelligibility or loudness of an audio program - Google Patents

Improving at least one of intelligibility or loudness of an audio program Download PDF

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Publication number
EP2903301A3
EP2903301A3 EP15151272.0A EP15151272A EP2903301A3 EP 2903301 A3 EP2903301 A3 EP 2903301A3 EP 15151272 A EP15151272 A EP 15151272A EP 2903301 A3 EP2903301 A3 EP 2903301A3
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EP
European Patent Office
Prior art keywords
signals
audio program
downmix
loudness
intelligibility
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15151272.0A
Other languages
German (de)
French (fr)
Other versions
EP2903301A2 (en
EP2903301B1 (en
Inventor
Timothy Carroll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TLS Corp
Original Assignee
Telos Alliance
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Publication date
Application filed by Telos Alliance filed Critical Telos Alliance
Publication of EP2903301A2 publication Critical patent/EP2903301A2/en
Publication of EP2903301A3 publication Critical patent/EP2903301A3/en
Application granted granted Critical
Publication of EP2903301B1 publication Critical patent/EP2903301B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/13—Aspects of volume control, not necessarily automatic, in stereophonic sound systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

A system for improving intelligibility or loudness of an audio program includes an encoder that receives signals of the audio program including at least one of left/front and right/front or left and right signals that include some anchor components of the audio program and to downmix the received signals to obtain left downmix and right downmix signals. The system includes a decoder that upmixes the left downmix and right downmix signals to obtain a center upmix signal that includes a majority of the anchor components including at least some anchor components that were included in the left/front and right/front signals or the left and right signals. The system also includes a system output that provides the center upmix signal to process at least one of the signals of the audio program based on the center upmix signal to improve intelligibility or loudness of the audio program.
Figure imgaf001
EP15151272.0A 2014-01-29 2015-01-15 Improving at least one of intelligibility or loudness of an audio program Active EP2903301B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/167,479 US9344825B2 (en) 2014-01-29 2014-01-29 At least one of intelligibility or loudness of an audio program

Publications (3)

Publication Number Publication Date
EP2903301A2 EP2903301A2 (en) 2015-08-05
EP2903301A3 true EP2903301A3 (en) 2015-09-09
EP2903301B1 EP2903301B1 (en) 2016-11-16

Family

ID=52434536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15151272.0A Active EP2903301B1 (en) 2014-01-29 2015-01-15 Improving at least one of intelligibility or loudness of an audio program

Country Status (4)

Country Link
US (1) US9344825B2 (en)
EP (1) EP2903301B1 (en)
AU (1) AU2015200054A1 (en)
CA (1) CA2880126C (en)

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US9413321B2 (en) 2004-08-10 2016-08-09 Bongiovi Acoustics Llc System and method for digital signal processing
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US8284955B2 (en) 2006-02-07 2012-10-09 Bongiovi Acoustics Llc System and method for digital signal processing
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
US10701505B2 (en) 2006-02-07 2020-06-30 Bongiovi Acoustics Llc. System, method, and apparatus for generating and digitally processing a head related audio transfer function
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US9615189B2 (en) 2014-08-08 2017-04-04 Bongiovi Acoustics Llc Artificial ear apparatus and associated methods for generating a head related audio transfer function
US9348904B2 (en) 2006-02-07 2016-05-24 Bongiovi Acoustics Llc. System and method for digital signal processing
US11202161B2 (en) 2006-02-07 2021-12-14 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
US9398394B2 (en) 2013-06-12 2016-07-19 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9883318B2 (en) 2013-06-12 2018-01-30 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9264004B2 (en) 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
US9397629B2 (en) 2013-10-22 2016-07-19 Bongiovi Acoustics Llc System and method for digital signal processing
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
US9564146B2 (en) * 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
JP2018537910A (en) 2015-11-16 2018-12-20 ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー Surface acoustic transducer
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
US9820073B1 (en) 2017-05-10 2017-11-14 Tls Corp. Extracting a common signal from multiple audio signals
US11211043B2 (en) 2018-04-11 2021-12-28 Bongiovi Acoustics Llc Audio enhanced hearing protection system
WO2019246457A1 (en) 2018-06-22 2019-12-26 Dolby Laboratories Licensing Corporation Multichannel audio enhancement, decoding, and rendering in response to feedback
US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function

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US20050074127A1 (en) * 2003-10-02 2005-04-07 Jurgen Herre Compatible multi-channel coding/decoding
WO2011069205A1 (en) * 2009-12-10 2011-06-16 Reality Ip Pty Ltd Improved matrix decoder for surround sound

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US4748669A (en) 1986-03-27 1988-05-31 Hughes Aircraft Company Stereo enhancement system
US5661808A (en) 1995-04-27 1997-08-26 Srs Labs, Inc. Stereo enhancement system
US7454331B2 (en) 2002-08-30 2008-11-18 Dolby Laboratories Licensing Corporation Controlling loudness of speech in signals that contain speech and other types of audio material
US7729775B1 (en) 2006-03-21 2010-06-01 Advanced Bionics, Llc Spectral contrast enhancement in a cochlear implant speech processor
ATE514163T1 (en) 2007-09-12 2011-07-15 Dolby Lab Licensing Corp LANGUAGE EXPANSION
US8705769B2 (en) * 2009-05-20 2014-04-22 Stmicroelectronics, Inc. Two-to-three channel upmix for center channel derivation
US9324337B2 (en) * 2009-11-17 2016-04-26 Dolby Laboratories Licensing Corporation Method and system for dialog enhancement
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Publication number Priority date Publication date Assignee Title
US20050074127A1 (en) * 2003-10-02 2005-04-07 Jurgen Herre Compatible multi-channel coding/decoding
WO2011069205A1 (en) * 2009-12-10 2011-06-16 Reality Ip Pty Ltd Improved matrix decoder for surround sound

Also Published As

Publication number Publication date
EP2903301A2 (en) 2015-08-05
US20150215720A1 (en) 2015-07-30
US9344825B2 (en) 2016-05-17
EP2903301B1 (en) 2016-11-16
CA2880126C (en) 2018-07-10
CA2880126A1 (en) 2015-07-29
AU2015200054A1 (en) 2015-08-13

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